Anderson, B., & Anderson, J. (1980). Stretching. Pelham Books.
Lua i Stíl Chicago (17ú heag.)Anderson, Bob, agus Jean Anderson. Stretching. Great Britain: Pelham Books, 1980.
Lua MLA (9ú heag.)Anderson, Bob, agus Jean Anderson. Stretching. Pelham Books, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.